Battery Tips, Laptop Battery Care Guide by batteryfast.com: Hard Drives 1 by www.goodlaptopbattery.com.au

2011年2月17日星期四

Hard Drives 1 by www.goodlaptopbattery.com.au

www.goodlaptopbattery.com.au – Hard Drives 1

“I’m checking out laptops, and some say they have a solid state hard drive. Is this a good thing? How does a solid state hard drive compare to a regular hard drive?

What is a Solid State Drive?

Solid state hard drives were introduced to the public at the 2007 Consumer Electronics Show in Las Vegas. A solid state hard drive, or SSD, is the next revolution in computer hard drive technology. It was designed using the same technology as USB flash drives, and it is intended to eventually replace the standard hard drive that uses a spindle and platter. While there are several significant advantages to using a solid state drive with no moving parts, price is currently keeping the SSD from taking over the hard drive market for laptop and desktop computers.

As mentioned previously the solid state hard drive has no moving parts. Instead of using a storage medium that is magnetic or optical, an SSD is made entirely of semiconductors and typically uses the nonvolatile NAND Flash technology, which gives you nearly immediate access to data in the SSD.

There are several obvious advantages to using a solid state hard drive. The first advantage is that there are no moving parts. This means that SSDs are not susceptible to data corruption or operation failures caused by debris or movement. In other words, they tolerate the Two D’s (dust and dropping) better than a traditional hard drive. Have you ever bumped into a turntable while a record is playing? The same type of damage to a hard drive platter can occur when the read head gouges the surface. A solid state drive has no moving parts, so there’s no chance the “needle” can scratch the “record”.

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Another advantage is that they can access data stored in their memory nearly instantaneously, even when data is fragmented. Access time can be orders of magnitude faster than with a disk, because the data can be accessed randomly — there’s no need to synchronize the read/write head with a rotating disk.

Also, the solid state hard drive uses about 50% less energy (important for laptops running on battery power), makes no noise, and is generally more stable. The solid state hard drive has a longer anticipated lifespan when compared to traditional hard drives, as it doesn’t have the moving parts and magnetic surfaces that are eventually going to wear out or malfunction.